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| Development of an on-chip Power Divider for the Quantum Voltage Chip |
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Abstract Using the power divider in the quantum voltage chip is an important method to improve the quantum output amplitude of the quantum chip. The π-type LC circuit can achieve a small on-chip Wilkinson power divider, and add a?λ/4 converter to broaden the working bandwidth. Developing an on-chip broadband Wilkinson power divider based on the design simulation. In the range of 13GHz to 23GHz, the power allocation is given in 3.0±0.25dB. In the range of 12 GHz to 23 GHz, its input and output reflections are respectively below -12 dB and -10.5 dB. In the range of 1.5 GHz-30 GHz, three arrays with power divider are irradiated by microwave. The test result shows that the three Josephson junction arrays are the same, proving that the power divider can effectively achieve two-way equal output.
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Received: 24 October 2023
Published: 18 December 2024
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2024, Vol. 45 
